三重県北勢地域における国内外来タビラAcheilognathus tabira類の確認と遺伝的特徴

抄録

Exotic populations of Acheilognatus tabira found in northern Mie Prefecture, and subjected to nucleotide sequencing of the mitochondrial DNA cytochrome b region, were determined to represent the Hokuriku (A. t. jordani) and Kinki-Sanyo (A. t. tabira) lineages. The first record of A. t. jordani from outside its native distribution area (Japan Sea side of western Honshu), it is likely to be a viable population due to the presence at the sampling site of the freshwater mussel Beringiana fukuharai (Unionidae, Cristariini), with which the former likely has a spawning relationship.